Disc brake rotor assembly

Abstract

An assembly to secure a disc brake rotor to a wheel hub utilizing spring pins and a retaining ring is provided. A partial keyway is formed in the rotor, and a partial keyway is formed in the wheel hub. The rotor is fitted over an inwardly extending section of the hub, with the partial keyways in the rotor and in the wheel hub being aligned to form complete keyways. The spring pins are then press fit into the completed keyways. Finally, a retaining ring is installed into a slot formed in the inwardly extending section of the wheel hub to complete the assembly of the disc brake rotor assembly.

What is claimed is: 
     
       1. A disc brake rotor assembly comprising:
 a plurality of pins each having an outer circumference, 
 a disc brake rotor having a first plurality of partial keyways each configured to extend around less than the entire outer circumference of one of the pins, 
 a wheel hub having a second plurality of partial keyways each configured to extend around less than the entire outer circumference of one of the pins, 
 the disc brake rotor installed on the wheel hub such that the partial keyways in the disc brake rotor and the partial keyways in the wheel hub are aligned to form completed keyways, and 
 each pin in one of the completed keyways. 
 
     
     
       2. The disc brake rotor assembly of  claim 1 ,
 wherein each pin is press fitted into each completed keyway. 
 
     
     
       3. The disc brake rotor assembly of  claim 1 ,
 wherein the wheel hub has an inward end with the second plurality of partial keyways and the disc brake rotor includes an axially centered opening that receives the wheel hub inward end with the plurality of partial keyways. 
 
     
     
       4. The disc brake rotor assembly of  claim 1 ,
 wherein the completed keyway is at an angle from a central axis of the disc brake rotor assembly. 
 
     
     
       5. The disc brake rotor assembly of  claim 1 ,
 wherein the wheel hub includes a retaining groove in which a retaining ring is fitted. 
 
     
     
       6. The disc brake rotor assembly of  claim 1 , wherein the pins are spring pins. 
     
     
       7. A disc brake rotor assembly comprising:
 a disc brake rotor having a plurality of partial keyways and a central opening, 
 a wheel hub having a plurality of partial keyways and a central opening, 
 the disc brake rotor installed on the wheel hub such that the partial keyways in the disc brake rotor and the partial keyways in the wheel hub are aligned to form completed keyways, and 
 a plurality of elongate spring pins each having a length, each spring pin inserted into one of the completed keyways, 
 the disc brake rotor and the wheel hub being rotatable about a central axis that extends through centers of the central openings of the disc brake rotor and the wheel hub, and 
 the completed keyways orienting the pins so that the lengths thereof extend parallel to the central axis. 
 
     
     
       8. The disc brake rotor assembly of  claim 7 ,
 wherein each spring pin is press fitted into each completed keyway. 
 
     
     
       9. The disc brake rotor assembly of  claim 7 ,
 wherein the wheel hub includes an inward end with the plurality of partial keyways and the disc brake rotor includes an axially centered opening that receives the wheel hub inward end with the plurality of partial keyways. 
 
     
     
       10. The disc brake rotor assembly of  claim 7 ,
 wherein each completed keyway has an open end that receives one of the spring pins and a closed end opposite the open end. 
 
     
     
       11. The disc brake rotor assembly of  claim 7 ,
 wherein the wheel hub includes a retaining groove in which a retaining ring is fitted. 
 
     
     
       12. A disc brake rotor assembly comprising:
 a disc brake rotor having a plurality of partial keyways with first arcuate surfaces, 
 a wheel hub having a plurality of partial keyways having second arcuate surfaces, 
 the disc brake rotor installed on the wheel hub such that the partial keyways in the disc brake rotor and the partial keyways in the wheel hub are aligned to form completed keyways with the first and second arcuate surfaces of each completed keyway facing each other, 
 a plurality of pins, each pin inserted into one of the completed keyways and held between the facing, first and second arcuate surfaces of the one completed keyway, and 
 a spacer adjacent the wheel hub and the disc brake rotor. 
 
     
     
       13. The disc brake rotor assembly of  claim 12 ,
 wherein each pin is a spring pin that is press fitted into each completed keyway. 
 
     
     
       14. The disc brake rotor assembly of  claim 12 ,
 wherein the wheel hub includes an inward end with the plurality of partial keyways and the disc brake rotor includes an axially centered opening that receives the wheel hub inward end with the plurality of partial keyways. 
 
     
     
       15. The disc brake rotor assembly of  claim 12 ,
 wherein the wheel hub includes an inward end having an edge against which the spacer is fitted. 
 
     
     
       16. The disc brake rotor assembly of  claim 15 ,
 wherein the spacer is a spring. 
 
     
     
       17. The disc brake rotor assembly of  claim 12 ,
 wherein the wheel hub includes a retaining groove in which a retaining ring is fitted. 
 
     
     
       18. A disc brake rotor assembly comprising:
 a disc brake rotor having a plurality of partial keyways and retaining grooves, 
 a wheel hub having an inward end with a plurality of partial keyways, 
 the disc brake rotor installed on the wheel hub such that the partial keyways in the disc brake rotor and the partial keyways in the wheel hub are aligned to form completed keyways, 
 a plurality of pins, each pin combined with a threaded fastener and then inserted into one of the completed keyways. 
 
     
     
       19. The disc brake rotor assembly of  claim 18 ,
 wherein each pin is a spring pin that is press fitted into each completed keyway. 
 
     
     
       20. The disc brake rotor assembly of  claim 18 ,
 wherein the disc brake rotor includes an axially centered opening that receives the wheel hub inward end with the plurality of partial keyways. 
 
     
     
       21. The disc brake rotor assembly of  claim 18 ,
 wherein the wheel hub inward end includes a retaining groove in which a retaining ring is fitted. 
 
     
     
       22. A disc brake rotor assembly comprising:
 a disc brake rotor having a plurality of partial keyways and retaining grooves, 
 a wheel hub having an inward end with a plurality of partial keyways, 
 the disc brake rotor installed on the wheel hub such that the partial keyways in the disc brake rotor and the partial keyways in the wheel hub are aligned to form completed keyways, 
 a plurality of pins, each pin inserted into one of the completed keyways, 
 and the wheel hub further comprising a stop tab adjacent each pin, 
 wherein the wheel hub inward end includes a retaining groove in which a retaining ring is fitted. 
 
     
     
       23. The disc brake rotor assembly of  claim 22 ,
 wherein each pin is a spring pin that is press fitted into each completed keyway. 
 
     
     
       24. The disc brake rotor assembly of  claim 22 ,
 wherein the disc brake rotor includes an axially centered opening that receives the wheel hub inward end with the plurality of partial keyways.